diff mbox

of: document refcount incrementation of of_get_cpu_node()

Message ID 1461115126-2648-1-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit 1c986e3643d278d93e9ca67b3c752f486cc32318
Headers show

Commit Message

Masahiro Yamada April 20, 2016, 1:18 a.m. UTC 
This function increments refcount.  This is worth noting.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

 drivers/of/base.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/of/base.c b/drivers/of/base.c
index b299de2..365e1c02 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -394,7 +394,8 @@  bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
  * before booting secondary cores. This function uses arch_match_cpu_phys_id
  * which can be overridden by architecture specific implementation.
  *
- * Returns a node pointer for the logical cpu if found, else NULL.
+ * Returns a node pointer for the logical cpu with refcount incremented, use
+ * of_node_put() on it when done. Returns NULL if not found.
  */
 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
 {